Surfaces prone to moisture or regularly exposed to water should be checked timely for waterproofing. A few signs can help decide if they would need waterproofing. Look for visible cracks and stains on walls, indicating water seepage or infiltration. Next, look for peeling plaster, paint, or wallpaper. Check for mould and mildew, often noticeable as greenish or blackish patches with a musty smell. When you notice any of these signs, it is advisable to take waterproofing measures immediately.
You can also identify the dampness present in the wall using Berger’s Moisture Meter tool.